Integrys Energy Services offers a fixed price electricity rate that will bring you savings compared to Ameren’s current electricity Price to Compare.
To enroll online, please be sure to have the following information about your Ameren account:

Account Number

Service and Mailing Address

Telephone Number

If you would prefer to enroll over the phone, please call us at 1-888-688-1236.

Illinois electric customers have a choice in their energy supplier. Electricity delivery, meter
reading and emergency response continue through Ameren. Electric choice competition can help you stabilize, or lower, your costs.

There are two main components of your electric service: supply (generation and transmission) and delivery (distribution). Delivery refers to the transmission facilities distributing the electricity provided by your electric supplier, as well as metering and related services. You have the option to purchase the supply portion of your electricity from an Alternative Retail Electric Supplier (ARES), like Integrys Energy Services, providing you the ability to proactively manage your energy costs.

Signing up with Integrys Energy for your home, condo or apartment is easy and takes about 5 minutes. You will want to have copy of a recent electric utility bill. From Integrys' Ameren program overview page click on the ‘Enroll’ button, and complete the Customer Information form. You will receive an email confirmation of your enrollment request, including your unique confirmation number and a links to the product Terms and Conditions.

If you prefer to enroll by telephone, please call 1-888-688-1236.

Upon successful enrollment you will receive written notification from your current utility company, Ameren, confirming your choice and your utility bill will reflect the switch to Integrys Energy Services.

In order to enroll with we must have your active utility account number so that we can inform the utility of your choice to switch. The utility information is the key piece of information in communicating your electricity supply switch with your utility.

Integrys Energy Services strives to offer a very competitive rate compared to the current standard utility. Integrys Energy's currently posted rate is 8.05% lower than Ameren’s current Price to Compare for residential non-heating customers. Savings result from a comparison of Integrys’ fixed rate for identified delivery classes for a 12 billing cycle (July 2011 meter read to July 2012 meter read) term, as compared to Ameren’s June 2011 to September 2011 fixed rate (Ameren’s electric supply charge, plus Ameren's fixed portion of the supply cost adjustment, plus Ameren’s transmission services charge). Comparison does not include Ameren delivery charges or Ameren’s “purchased electricity adjustment”. Ameren’s rates will change each June and October. Price to Compare is based on the ICC's Plug In Illinois website.

If you have questions on the delivery portion of your bill, you should call your local utility. For questions about the supply portion of the bill, please call our customer service line at 1-888-688-1236.

Please call your utility, Ameren, at 1-800-755-5000 for all emergency or technical problems. The utility is still responsible for the safe and reliable delivery of the electricity you purchase, whether you purchase your electricity from the utility or a supplier.